Games, Roms: Switch roms, NSW roms, XCI roms, 3DS roms, CIA roms, NDS roms, SNES roms, NES roms, and more. Brain Age: Concentration Training. The second game in the Brain Age series. This game has exercises that 'jog' your brain and make you think with all different parts of your brain. As an added. Brain Age: Concentration Training is a mental training game by Nintendo. features exercises designed to help retrain the modern mind. Playstation.